New generation bus controlled CNC system for high-grade machining center. It adopts 7-10.4 inch LCD screen with horizontal/vertical structure and has more profiles totally. System communicates with servo unit in real time through serial servo bus, which can control feed axes, analog spindle, digit spindle, I/O modules and etc. Match with servo drivers and motors with high resolution.absolute encoder to realize position accuracy up to 0.1μm and satisfy high precision requirements of turning and machining center.